sync with head.
for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.
this commit was splitted into small chunks to avoid
a limitation of cvs. ("Protocol error: too many arguments")

Pull up the following revisions(s) (requested by riz in ticket #641):
share/misc/bsd-family-tree: revision 1.46-1.47
Re-add a line from NetBSD 0.8 to FreeBSD 1.0.
Add some missing NetBSD releases: 4.0.1, 5.0.1, 5.0.2 and 5.1.2.

Pull up the following revisions(s) (requested by riz in ticket #641):
share/misc/bsd-family-tree: revision 1.46-1.47
Re-add a line from NetBSD 0.8 to FreeBSD 1.0.
Add some missing NetBSD releases: 4.0.1, 5.0.1, 5.0.2 and 5.1.2.

Pull up the following revisions(s) (requested by riz in ticket #1806):
share/misc/bsd-family-tree: revision 1.46-1.47
Re-add a line from NetBSD 0.8 to FreeBSD 1.0.
Add some missing NetBSD releases: 4.0.1, 5.0.1, 5.0.2 and 5.1.2.

Pull up the following revisions(s) (requested by riz in ticket #1806):
share/misc/bsd-family-tree: revision 1.46-1.47
Re-add a line from NetBSD 0.8 to FreeBSD 1.0.
Add some missing NetBSD releases: 4.0.1, 5.0.1, 5.0.2 and 5.1.2.

Pull up the following revisions(s) (requested by riz in ticket #1806):
share/misc/bsd-family-tree: revision 1.46-1.47
Re-add a line from NetBSD 0.8 to FreeBSD 1.0.
Add some missing NetBSD releases: 4.0.1, 5.0.1, 5.0.2 and 5.1.2.

Pull up the following revisions(s) (requested by riz in ticket #1463):
share/misc/bsd-family-tree: revision 1.46-1.47
Re-add a line from NetBSD 0.8 to FreeBSD 1.0.
Add some missing NetBSD releases: 4.0.1, 5.0.1, 5.0.2 and 5.1.2.

Re-add a line from NetBSD 0.8 to FreeBSD 1.0, which got lost in the
last commit. From the original commit log of rev 1.33:
revision 1.33
date: 2006/03/02 16:21:53; author: tls; state: Exp; lines: +3 -3
Add line from NetBSD 0.8 to FreeBSD 1.0, reflecting the fact that the
patchkit maintainers were provided with a prerelease snapshot of NetBSD,
changes from which they integrated into their working tree, well prior
to their announcement of the FreeBSD project. Per personal communications
with Charles Hannum and Chris Demetriou. This line is in at least one
other published version of this chart, but seems to never have been in
the version in our repository (unfortunately, cvs diff on ascii art is
not very helpful).

Add line from NetBSD 0.8 to FreeBSD 1.0, reflecting the fact that the
patchkit maintainers were provided with a prerelease snapshot of NetBSD,
changes from which they integrated into their working tree, well prior
to their announcement of the FreeBSD project. Per personal communications
with Charles Hannum and Chris Demetriou. This line is in at least one
other published version of this chart, but seems to never have been in
the version in our repository (unfortunately, cvs diff on ascii art is
not very helpful).